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05/12/2009 at 07:03AM PDT, ID: 24401230
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9.7

TScrollbox: How can I prevent automatic "scrollintoview" of large components?

Asked by waeberd in Delphi Programming

Tags: Delphi, vcl, TScrollbox, ScrollIntoView

Hi, a very annoying problem using BDS2006:

I have a Form with a Scrollbox containing two TStringGrids aligned vertically.
The StringGrids are sized so that the bottom one is only partly displayed on the Form, the ScrollBox allows accessing the whole StringGrid.

The problem: if I click the bottom StringGrid (which is partly visible), the Scrollbox "jumps" so that the clicked StringGrid scrolls into view completely. I want to be able to click the StringGrid without any "jump effect" on the scrollbox!
How can I do this? 
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unit1.pas
==============================
unit Unit1;
 
interface
 
uses
  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
  Dialogs, Grids;
 
type
  TForm1 = class(TForm)
    ScrollBox1: TScrollBox;
    StringGrid1: TStringGrid;
    StringGrid2: TStringGrid;
  private
    { Private declarations }
  public
    { Public declarations }
  end;
 
var
  Form1: TForm1;
 
implementation
 
{$R *.dfm}
 
end.
==============================
 
unit1.dfm
==============================
object Form1: TForm1
  Left = 0
  Top = 0
  Caption = 'Form1'
  ClientHeight = 533
  ClientWidth = 742
  Color = clBtnFace
  Font.Charset = DEFAULT_CHARSET
  Font.Color = clWindowText
  Font.Height = -11
  Font.Name = 'Tahoma'
  Font.Style = []
  OldCreateOrder = False
  PixelsPerInch = 96
  TextHeight = 13
  object ScrollBox1: TScrollBox
    Left = 0
    Top = 0
    Width = 742
    Height = 533
    Align = alClient
    TabOrder = 0
    ExplicitWidth = 688
    object StringGrid1: TStringGrid
      Left = 5
      Top = 5
      Width = 668
      Height = 300
      RowCount = 20
      TabOrder = 0
    end
    object StringGrid2: TStringGrid
      Left = 5
      Top = 311
      Width = 668
      Height = 400
      RowCount = 20
      TabOrder = 1
    end
  end
end
==============================
[+][-]05/12/09 07:53 AM, ID: 24365240

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About this solution

Zone: Delphi Programming
Tags: Delphi, vcl, TScrollbox, ScrollIntoView
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Solution Provided By: rllibby
Participating Experts: 2
Solution Grade: A
 
 
[+][-]05/12/09 08:08 AM, ID: 24365439

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[+][-]05/12/09 08:47 AM, ID: 24365943

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